Mississippi reservoir · state assessment record
Loakfoma Lake
Assessment decisions reported by Mississippi to EPA under Clean Water Act sections 303(d) and 305(b), last assessed in the 2018 reporting cycle.
- 458
- Assessed acres
- Lake / Reservoir / Pond
- Water type
This waterbody in one line
Loakfoma Lake, a reservoir in Mississippi, is assessed as not supporting one or more designated uses, with 4 listed impairment causes in the state's most recent Integrated Report cycle (2018). By assessed acreage it sits among the largest 10% by assessed acreage nationally (38,628 lakes); its impairment list is among the longest nationally (4 listed causes vs 23,610 assessed lakes). Aquatic life is assessed as not supporting.
- Not Supporting
- overall status
- P90
- Assessed size nationally
- P3
- Shorter cause list
- Not Supporting
- aquatic life
Assessment verdicts are the state agency's decisions as reported to EPA ATTAINS; PlainLakes renders them without modification.
A composite of this record's EPA ATTAINS designated-use verdicts, filed impairment count, and assessment currency, weighted and benchmarked against the national corpus of assessed active waterbodies. This is a water-quality standing, not a human-recreation or property-value judgment, and dimensions with no filed verdict drop out rather than count against the score.
Where Loakfoma Lake stands in the filed register
Paragraphs are selected by this unit's percentiles and use matrix: different lakes lead with different dimensions. Figures are ATTAINS / portal register arithmetic, not advice.
The signature stat: in-state cause rank
Inside Mississippi, cause-list rank is the local separator: Loakfoma Lake is 1 of 14 indexed units by listed-cause count, toward the top of that state's filed lists.
Longer than most cause lists
4 listed causes puts this unit above 95% of assessed lake-type records by list length. Treat that as a coding-and-sampling signal: states that split pollutants finely mint longer lists without proving worse water.
No ruled-on use clears the bar
On the uses this filer ruled on, aquatic life, every determination is Not Supporting. That is a use-by-use reading of the filed record, not a single overall lake grade.
Large assessed unit
At 458 acres, Loakfoma Lake clears the upper tercile of assessed lake-type units with an area on file (3,947 still larger). Size comparisons use the portal's deduplicated lake ranking population, not raw ATTAINS row counts.
Loakfoma Lake: Category 5, TMDL still owed
Category 5 is the Integrated Report band where a TMDL (or equivalent) is still expected for Loakfoma Lake. Read the listed causes and any cleanup actions filed beside them before treating the overall status tile as a finished restoration story.
According to the U.S. Environmental Protection Agency's ATTAINS program, Mississippi carries 114 filed lake-type waterbodies in the August 2026 extract, and this page renders the assessment record EPA assigned to Loakfoma Lake without modification. See our methodology for reporting-unit limits and gauge linking rules.
The record
Designated-use assessments
Fully Supporting and Not Supporting are the state's definitive verdicts; other entries mean the use was not conclusively assessed in this cycle.
| Designated use | Group | Verdict |
|---|---|---|
| Aquatic Life Support | Aquatic-life or related | Not Supporting |
The record
Listed impairment causes
Causes the state listed as impairing designated uses of this reservoir, with the cycle each was first listed and the Clean Water Act action recorded against it.
| Cause | Affected uses | First listed | Cleanup standing |
|---|---|---|---|
| Chemical Oxygen Demand (COD) | Aquatic Life Support | 2016 | TMDL priority: Low |
| Chlorophyll-a | Aquatic Life Support | 2016 | TMDL priority: Low |
| Organic Enrichment | Aquatic Life Support | 2016 | TMDL priority: Low |
| pH | Aquatic Life Support | 2016 | TMDL priority: Low |
Probable sources
Mississippi listed the source of the impairment as unknown. That is the state's own filed value, not a gap in this record: the cause has been identified, the origin has not.
Reading the record
Where Loakfoma Lake sits among peers
7% of Mississippi's lakes assessed this deeply also had no use supported
Mississippi ruled definitively on a single designated use at Loakfoma Lake and found it not supported. The dataset shows 90 Mississippi lakes judged to that same depth.
Mississippi's assessed lakes are most often judged on 1 use, as this one was.
Computed share from EPA ATTAINS filed records, not an official EPA rating or safety grade.
| 1 | 2 | 3 | 4 | 5+ | |
|---|---|---|---|---|---|
| All supported | 84 | 0 | 0 | 0 | 0 |
| Mixed | Not possible | 8 | 0 | 0 | 0 |
| None supported | 6 (this record) | 0 | 0 | 0 | 0 |
Ringed cell: Loakfoma Lake. Source: EPA ATTAINS, Reporting cycles 1987–2026.
Scale and rank
Loakfoma Lake is one of 114 lake-type waterbodies reported to EPA from Mississippi, and one of 14 whose reported record carries enough populated assessment or gauge data for this site to list and index it. At 458 assessed acres it ranks 3,948th by assessed size among the 38,628 lakes the dataset carries an area for, counting a state’s repeated filings of one water once, behind 3,947 lakes with a larger one.
Not yet on record
The state has not yet filed a definitive fish-consumption verdict and a definitive recreation verdict for this record; those fields populate when it reports them in a future Integrated Report cycle.
In context
Where Loakfoma Lake sits nationally
Assessed size among U.S. lakes
Distribution of assessed acreage across ATTAINS lakes filed with an area, counting a state’s repeated filings of one water once
458 Top 10% larger than 90% of 38,628 lakes
lakes the dataset carries an area for, counting a state’s repeated filings of one water once, bucketed by value
Source EPA ATTAINS · Reporting cycles 1987–2026
Listed causes vs waterbodies carrying a verdict
How many impairment causes U.S. waterbodies with a reported verdict carry
4 Longer than most more listed causes than 95% of 23,610 waterbodies carrying a verdict
named waterbodies carrying a verdict, bucketed by value
Source EPA ATTAINS · Reporting cycles 1987–2026
In both charts each bar is a band and taller bars hold more waterbodies; the dashed line and filled bar mark Loakfoma Lake. Hover or tap any bar for its full count and share.
In context
Mississippi context
ATTAINS carries 114 lake-type waterbodies in Mississippi, 14 assessed as not supporting at least one use and 84 fully supporting. Among the 14 indexed units there, Loakfoma Lake ranks 1st by listed-cause count (4 listed causes) and 10th by assessed size among the 14 with an area filed; it sits in the not-supporting set (14 statewide) . Its listed causes include Organic Enrichment and pH, which also appear among Mississippi's most-filed impairment causes (led by Mercury in Fish Tissue). It also lists Chemical Oxygen Demand (COD) and Chlorophyll-a, outside that top-five list.
| Other large assessed lakes in Mississippi | Assessed acres |
|---|---|
| Ross Barnett Reservoir Assessment unit MS507511 Fully Supporting | 20,737 |
| Sardis Lake Fully Supporting | 15,277 |
| Grenada Lake Assessment unit MS914611 Fully Supporting | 9,927 |
| Arkabutla Lake Fully Supporting | 6,279 |
| Grenada Lake Assessment unit MS915811 Not Supporting | 6,011 |
| Ross Barnett Reservoir Assessment unit MS507412 Fully Supporting | 5,483 |
Peers near Loakfoma Lake's size or cause load
Similar assessed acres
Nearest filed extents (458 acres here).
- Big Carnelian · 458 acres · MN
- Big Creek Reservoir · 458 acres · CO
- Dead Slough Lake · 458 acres · WI
- Mount Dome Hydrologic Subarea, Indian Tom Lake · 458 acres · CA
Similar cause load
Nearest listed-cause counts (4 here). Peers already in the acreage column are omitted.
- Agency Lake · 4 causes · OR
- Alachua Sink · 4 causes · FL
- Aldrich Pond · 4 causes · MA
- American Falls Reservoir (Snake River) · 4 causes · ID
What to do with this record
- Assessment verdicts are cycle-based, not real-time. For fish-consumption decisions, your state advisory program is the binding source. Consumption status guide
- Impairment listings follow the Clean Water Act 303(d) process; a listing is a regulatory finding, not a closure notice. 303(d) explained
PlainLakes renders state assessment decisions and federal gauge observations without modification. It does not issue advisories.
Assessment decisions on this page are rendered directly from state Integrated Report records in EPA's ATTAINS system; gauge figures are daily-value observations from the USGS National Water Information System, no number is typed in by an editor. Overall status, use verdicts, and causes are the state's reported decisions for assessment unit MS812914. Counts and percentiles are computed across all lake-type records PlainLakes ingests from ATTAINS. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-17. Primary sources: EPA ATTAINS and USGS National Water Information System.